It might be worth it to you to try out a few regular 3-button mice options. It’s funny, the cheap mice sometimes work the best. I do, however, have one of the $100 space mice, and it’s great. I recommend a space mouse, but even if you get one, I highly, highly, highly recommend that you use the center scroll wheel to orbit. Orbiting that way and holding down shift will also give you Pan. Personally, I use my middle finger for the center scroll wheel, to speed things up. It takes practice. If you practice using the center scroll wheel for a few weeks, you may find you don’t need the space mouse. I surprisingly enough use my mouse to navigate even while I’m using my space mouse. There are some situations where the regular mouse works better for navigating.
And with faster navigating, I hope you may find a decreased need for scenes!